Blogger, author, and all-around nice guy David Sparks has just announced the release of the fourth in his best-selling series of MacSparky Field Guides. The latest is a deep dive into the world of email -- the Email Field Guide (US$9.99) is an exhaustive look at email and the inbox is an incredible problem for so many people.
By exhaustive, I mean that this iBooks masterpiece is loaded with information. It's over 46,000 words in length (just under one NaNoWriMo novel long), has eight audio interviews, 36 detailed screencasts totaling almost 90 minutes in length, and a lot more material to get your email pr
